Big Heavy Aluminum Emaxx Needs Bl Motor Sytem Recomendations

[JCUEVAS]

It was a totaly stock electric 4-tec with a mechanical speed control. i shimmed it but honestly don't know if i did it right. The shims go on the inside of the diff cups before the two output shafts right? How should the diff feel? Easy to turn by hand? Should there be a little bit of resisdence before they wear in or smooth from the gecko? What type of lube should i use also? I used a thin layer of the black rr grease. I've seen different types of diif lube. What do you recomend? I really don't want to spend allot on new diffs. Thankyou for your help.